CAS: 70-49-5 Molecular Formula: C4H6O4S Molecular Weight (g/mol): 150.148 MDL Number: MFCD00004860 InChI Key: NJRXVEJTAYWCQJ-UHFFFAOYSA-N Synonym: mercaptosuccinic acid,thiomalic acid,2-thiomalic acid,2-mercaptosuccinic acid,monomercaptosuccinic acid,butanedioic acid, mercapto,malic acid, 2-thio,mercaptosuccinate,2-sulfanylsuccinic acid,dl-mercaptosuccinic acid PubChem CID: 6268 ChEBI: CHEBI:38705 IUPAC Name: 2-sulfanylbutanedioic acid SMILES: C(C(C(=O)O)S)C(=O)O